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    <title>Document</title>
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    <script>
        /**
         * const :
         *  1.一定需要赋初始值
         *  2.一般常量使用大写(潜规则)
         *  3.常量的值不能修改
         *  4.块级作用域
         *  5.对于数组和对象元素修改，不算做对常量的修改
         */
        const team = ['hell','hlla']
        team.push('aaa')
        console.log(team)




    </script>
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